Drift Danger
Emily Unglesbee DTN Staff Reporter
Thu Feb 26, 2015 07:47 AM CST

ST. LOUIS (DTN) -- Every pesticide applicator worth his salt knows not to spray when gusts of wind bend trees and scatter hats. But not everyone knows that the opposite -- a sunny afternoon with no wind -- could actually be the more dangerous time to spray.

Mornings and late afternoons with no wind and clear skies can often be signs of a dangerous atmospheric phenomenon called a temperature inversion, experts explained to DTN.

"We have seen more drift destruction in inversion conditions than on a really windy day," said Andrew Thostenson, a pesticide program specialist with North Dakota State ...

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